You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
195 lines
7.6 KiB
195 lines
7.6 KiB
// Copyright 2019 The Gitea Authors.
|
|
// All rights reserved.
|
|
// Use of this source code is governed by a MIT-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
package pull
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
"os"
|
|
"path/filepath"
|
|
"strings"
|
|
|
|
"code.gitea.io/gitea/models"
|
|
repo_model "code.gitea.io/gitea/models/repo"
|
|
"code.gitea.io/gitea/modules/git"
|
|
"code.gitea.io/gitea/modules/log"
|
|
repo_module "code.gitea.io/gitea/modules/repository"
|
|
)
|
|
|
|
// createTemporaryRepo creates a temporary repo with "base" for pr.BaseBranch and "tracking" for pr.HeadBranch
|
|
// it also create a second base branch called "original_base"
|
|
func createTemporaryRepo(ctx context.Context, pr *models.PullRequest) (string, error) {
|
|
if err := pr.LoadHeadRepoCtx(ctx); err != nil {
|
|
log.Error("LoadHeadRepo: %v", err)
|
|
return "", fmt.Errorf("LoadHeadRepo: %v", err)
|
|
} else if pr.HeadRepo == nil {
|
|
log.Error("Pr %d HeadRepo %d does not exist", pr.ID, pr.HeadRepoID)
|
|
return "", &repo_model.ErrRepoNotExist{
|
|
ID: pr.HeadRepoID,
|
|
}
|
|
} else if err := pr.LoadBaseRepoCtx(ctx); err != nil {
|
|
log.Error("LoadBaseRepo: %v", err)
|
|
return "", fmt.Errorf("LoadBaseRepo: %v", err)
|
|
} else if pr.BaseRepo == nil {
|
|
log.Error("Pr %d BaseRepo %d does not exist", pr.ID, pr.BaseRepoID)
|
|
return "", &repo_model.ErrRepoNotExist{
|
|
ID: pr.BaseRepoID,
|
|
}
|
|
} else if err := pr.HeadRepo.GetOwner(ctx); err != nil {
|
|
log.Error("HeadRepo.GetOwner: %v", err)
|
|
return "", fmt.Errorf("HeadRepo.GetOwner: %v", err)
|
|
} else if err := pr.BaseRepo.GetOwner(ctx); err != nil {
|
|
log.Error("BaseRepo.GetOwner: %v", err)
|
|
return "", fmt.Errorf("BaseRepo.GetOwner: %v", err)
|
|
}
|
|
|
|
// Clone base repo.
|
|
tmpBasePath, err := repo_module.CreateTemporaryPath("pull")
|
|
if err != nil {
|
|
log.Error("CreateTemporaryPath: %v", err)
|
|
return "", err
|
|
}
|
|
|
|
baseRepoPath := pr.BaseRepo.RepoPath()
|
|
headRepoPath := pr.HeadRepo.RepoPath()
|
|
|
|
if err := git.InitRepository(ctx, tmpBasePath, false); err != nil {
|
|
log.Error("git init tmpBasePath: %v", err)
|
|
if err := repo_module.RemoveTemporaryPath(tmpBasePath); err != nil {
|
|
log.Error("CreateTempRepo: RemoveTemporaryPath: %s", err)
|
|
}
|
|
return "", err
|
|
}
|
|
|
|
remoteRepoName := "head_repo"
|
|
baseBranch := "base"
|
|
|
|
// Add head repo remote.
|
|
addCacheRepo := func(staging, cache string) error {
|
|
p := filepath.Join(staging, ".git", "objects", "info", "alternates")
|
|
f, err := os.OpenFile(p, os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0o600)
|
|
if err != nil {
|
|
log.Error("Could not create .git/objects/info/alternates file in %s: %v", staging, err)
|
|
return err
|
|
}
|
|
defer f.Close()
|
|
data := filepath.Join(cache, "objects")
|
|
if _, err := fmt.Fprintln(f, data); err != nil {
|
|
log.Error("Could not write to .git/objects/info/alternates file in %s: %v", staging, err)
|
|
return err
|
|
}
|
|
return nil
|
|
}
|
|
|
|
if err := addCacheRepo(tmpBasePath, baseRepoPath); err != nil {
|
|
log.Error("Unable to add base repository to temporary repo [%s -> %s]: %v", pr.BaseRepo.FullName(), tmpBasePath, err)
|
|
if err := repo_module.RemoveTemporaryPath(tmpBasePath); err != nil {
|
|
log.Error("CreateTempRepo: RemoveTemporaryPath: %s", err)
|
|
}
|
|
return "", fmt.Errorf("Unable to add base repository to temporary repo [%s -> tmpBasePath]: %v", pr.BaseRepo.FullName(), err)
|
|
}
|
|
|
|
var outbuf, errbuf strings.Builder
|
|
if err := git.NewCommand(ctx, "remote", "add", "-t", pr.BaseBranch, "-m", pr.BaseBranch, "origin", baseRepoPath).
|
|
Run(&git.RunOpts{
|
|
Dir: tmpBasePath,
|
|
Stdout: &outbuf,
|
|
Stderr: &errbuf,
|
|
}); err != nil {
|
|
log.Error("Unable to add base repository as origin [%s -> %s]: %v\n%s\n%s", pr.BaseRepo.FullName(), tmpBasePath, err, outbuf.String(), errbuf.String())
|
|
if err := repo_module.RemoveTemporaryPath(tmpBasePath); err != nil {
|
|
log.Error("CreateTempRepo: RemoveTemporaryPath: %s", err)
|
|
}
|
|
return "", fmt.Errorf("Unable to add base repository as origin [%s -> tmpBasePath]: %v\n%s\n%s", pr.BaseRepo.FullName(), err, outbuf.String(), errbuf.String())
|
|
}
|
|
outbuf.Reset()
|
|
errbuf.Reset()
|
|
|
|
if err := git.NewCommand(ctx, "fetch", "origin", "--no-tags", "--", pr.BaseBranch+":"+baseBranch, pr.BaseBranch+":original_"+baseBranch).
|
|
Run(&git.RunOpts{
|
|
Dir: tmpBasePath,
|
|
Stdout: &outbuf,
|
|
Stderr: &errbuf,
|
|
}); err != nil {
|
|
log.Error("Unable to fetch origin base branch [%s:%s -> base, original_base in %s]: %v:\n%s\n%s", pr.BaseRepo.FullName(), pr.BaseBranch, tmpBasePath, err, outbuf.String(), errbuf.String())
|
|
if err := repo_module.RemoveTemporaryPath(tmpBasePath); err != nil {
|
|
log.Error("CreateTempRepo: RemoveTemporaryPath: %s", err)
|
|
}
|
|
return "", fmt.Errorf("Unable to fetch origin base branch [%s:%s -> base, original_base in tmpBasePath]: %v\n%s\n%s", pr.BaseRepo.FullName(), pr.BaseBranch, err, outbuf.String(), errbuf.String())
|
|
}
|
|
outbuf.Reset()
|
|
errbuf.Reset()
|
|
|
|
if err := git.NewCommand(ctx, "symbolic-ref", "HEAD", git.BranchPrefix+baseBranch).
|
|
Run(&git.RunOpts{
|
|
Dir: tmpBasePath,
|
|
Stdout: &outbuf,
|
|
Stderr: &errbuf,
|
|
}); err != nil {
|
|
log.Error("Unable to set HEAD as base branch [%s]: %v\n%s\n%s", tmpBasePath, err, outbuf.String(), errbuf.String())
|
|
if err := repo_module.RemoveTemporaryPath(tmpBasePath); err != nil {
|
|
log.Error("CreateTempRepo: RemoveTemporaryPath: %s", err)
|
|
}
|
|
return "", fmt.Errorf("Unable to set HEAD as base branch [tmpBasePath]: %v\n%s\n%s", err, outbuf.String(), errbuf.String())
|
|
}
|
|
outbuf.Reset()
|
|
errbuf.Reset()
|
|
|
|
if err := addCacheRepo(tmpBasePath, headRepoPath); err != nil {
|
|
log.Error("Unable to add head repository to temporary repo [%s -> %s]: %v", pr.HeadRepo.FullName(), tmpBasePath, err)
|
|
if err := repo_module.RemoveTemporaryPath(tmpBasePath); err != nil {
|
|
log.Error("CreateTempRepo: RemoveTemporaryPath: %s", err)
|
|
}
|
|
return "", fmt.Errorf("Unable to head base repository to temporary repo [%s -> tmpBasePath]: %v", pr.HeadRepo.FullName(), err)
|
|
}
|
|
|
|
if err := git.NewCommand(ctx, "remote", "add", remoteRepoName, headRepoPath).
|
|
Run(&git.RunOpts{
|
|
Dir: tmpBasePath,
|
|
Stdout: &outbuf,
|
|
Stderr: &errbuf,
|
|
}); err != nil {
|
|
log.Error("Unable to add head repository as head_repo [%s -> %s]: %v\n%s\n%s", pr.HeadRepo.FullName(), tmpBasePath, err, outbuf.String(), errbuf.String())
|
|
if err := repo_module.RemoveTemporaryPath(tmpBasePath); err != nil {
|
|
log.Error("CreateTempRepo: RemoveTemporaryPath: %s", err)
|
|
}
|
|
return "", fmt.Errorf("Unable to add head repository as head_repo [%s -> tmpBasePath]: %v\n%s\n%s", pr.HeadRepo.FullName(), err, outbuf.String(), errbuf.String())
|
|
}
|
|
outbuf.Reset()
|
|
errbuf.Reset()
|
|
|
|
trackingBranch := "tracking"
|
|
// Fetch head branch
|
|
var headBranch string
|
|
if pr.Flow == models.PullRequestFlowGithub {
|
|
headBranch = git.BranchPrefix + pr.HeadBranch
|
|
} else if len(pr.HeadCommitID) == 40 { // for not created pull request
|
|
headBranch = pr.HeadCommitID
|
|
} else {
|
|
headBranch = pr.GetGitRefName()
|
|
}
|
|
if err := git.NewCommand(ctx, "fetch", "--no-tags", remoteRepoName, headBranch+":"+trackingBranch).
|
|
Run(&git.RunOpts{
|
|
Dir: tmpBasePath,
|
|
Stdout: &outbuf,
|
|
Stderr: &errbuf,
|
|
}); err != nil {
|
|
if err := repo_module.RemoveTemporaryPath(tmpBasePath); err != nil {
|
|
log.Error("CreateTempRepo: RemoveTemporaryPath: %s", err)
|
|
}
|
|
if !git.IsBranchExist(ctx, pr.HeadRepo.RepoPath(), pr.HeadBranch) {
|
|
return "", models.ErrBranchDoesNotExist{
|
|
BranchName: pr.HeadBranch,
|
|
}
|
|
}
|
|
log.Error("Unable to fetch head_repo head branch [%s:%s -> tracking in %s]: %v:\n%s\n%s", pr.HeadRepo.FullName(), pr.HeadBranch, tmpBasePath, err, outbuf.String(), errbuf.String())
|
|
return "", fmt.Errorf("Unable to fetch head_repo head branch [%s:%s -> tracking in tmpBasePath]: %v\n%s\n%s", pr.HeadRepo.FullName(), headBranch, err, outbuf.String(), errbuf.String())
|
|
}
|
|
outbuf.Reset()
|
|
errbuf.Reset()
|
|
|
|
return tmpBasePath, nil
|
|
}
|
|
|